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Protected computer

Protected computer is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Protected computer rather than just read about it. In short: Protected computers is a term used in Title 18, Section 1030 of the United States Code, (the Computer Fraud and Abuse Act) which prohibits a number of different kinds of conduct, generally involving unauthorized access to, or damage to the data stored on, "protected computers". The statute, as amended by the National Information Infrastructure Protection Act of 1996, defines "protected computers" (formerly known as…

Key takeaways

  • Protected computer belongs to computer science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Protected computer to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Protected computer from memory before moving on to harder problems.

Reference excerpt

Protected computers is a term used in Title 18, Section 1030 of the United States Code, (the Computer Fraud and Abuse Act) which prohibits a number of different kinds of conduct, generally involving unauthorized access to, or damage to the data stored on, "protected computers". The statute, as amended by the National Information Infrastructure Protection Act of 1996, defines "protected computers" (formerly known as "federal interest computers") as:

a computer— (A) exclusively for the use of a financial institution or the United States Government, or, in the case of a computer not exclusively for such use, used by or for a financial institution or the United States Government and the conduct constituting the offense affects that use by or for the financial institution or the Government; or

(B) which is used in interstate or foreign commerce or communication, including a computer located outside the United States that is used in a manner that affects interstate or foreign commerce or communication of the United States. The law prohibits unauthorized obtaining of "information from any protected computer if the conduct involved an interstate or foreign communication," and makes it a felony to intentionally transmit malware to a protected computer if more than $5000 in damage (such as to the integrity of data) were to result.

Scope The US Justice Department explains:

In the 1994 amendments (of the National Information Infrastructure Act), the reach of this subsection (E. Subsection 1030(a)(5)) was broadened by replacing the term "federal interest computer" with the term "computer used in interstate commerce or communications." The latter term is broader because the old definition of "federal interest computer" in 18 U.S.C. § 1030(e)(2)(B) covered a computer "which is one of two or more computers used in committing the offense, not all of which are located in the same State." This meant that a hacker who attacked other computers in the same state was not subject to federal jurisdiction, even when these actions may have severely affected interstate or foreign commerce. For example, individuals who attack telephone switches may disrupt interstate and foreign calls. The 1994 change remedied that defect. However, the definition of federal interest computer actually covered more than simply interstate activity. More specifically, 18 U.S.C. § 1030(e)(2)(A) covered, generically, computers belonging to the United States Government or financial institutions, or those used by such entities on a non-exclusive basis if the conduct constituting the offense affected the Government's operation or the financial institution's operation of such computer. By changing § 1030(a)(5) from "federal interest computer" to "computer used in interstate commerce or communications," Congress may have inadvertently eliminated federal protection for those government and financial institution computers not used in interstate communications. For example, the integrity and availability of classified information contained in an intrastate local area network may not have been protected under the 1994 version of 18 U.S.C. § 1030(a)(5), although its confidentiality continued to be protected under 18 U.S.C. § 1030(a)(1). To remedy this situation in the 1996 Act, 18 U.S.C. § 1030(a)(5) was redrafted to cover any "protected computer," a new term defined in § 1030(e)(2) and used throughout the new statute--in § 1030(a)(5), as well as in §§ 1030(a)(2), (a)(4), and the new (a)(7). The definition of "protected computer" includes government computers, financial institution computers, and any computer "which is used in interstate or foreign commerce or communications." This broad definition addresses the original concerns regarding intrastate "phone phreakers" (i.e., hackers who penetrate telecommunications computers). It also specifically includes those computers used in "foreign" communications. With the continually expanding global information infrastructure, with numerous instances of international hacking, and with the growing possibility of increased global industrial espionage, it is important that the United States have jurisdiction over international computer crime cases. Arguably, the old definition of "federal interest computer" contained in 18 U.S.C. § 1030(e)(2) conferred such jurisdiction because the requirement that the computers used in committing the offense not all be located in the same state might be satisfied if one computer were located overseas. As a general rule, however, Congress's laws have been presumed to be domestic in scope only, absent a specific grant of extraterritorial jurisdiction. E.E.O.C. v. Arabian American Oil Co., 499 U.S. 244 (1991). To ensure clarity, the statute was amended to reference international communications explicitly.

See also Computer crime Computer trespass Defense Intelligence Agency (DIA) Immigration and Customs Enforcement National Information Infrastructure Protection Act United States v. Swartz United States Secret Service

References

External links Cornell Law posting of US Code 18 § 1030 US Department of Justice Computer Crime Policy & Programs

Worked examples

Example 1 — a first encounter with Protected computer

Start with the simplest possible case. Write down what Protected computer claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Protected computer before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Protected computer ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Protected computer

In research
Protected computer appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Protected computer in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Protected computer is common in secondary-school and first-year university syllabi. It links to neighbouring topics Computer law, Computer network security, United States federal criminal legislation, so understanding it makes those chapters shorter.
In everyday life
Look for Protected computer outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Protected computer in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Protected computer means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Protected computer out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Protected computer in simple terms?

Protected computers is a term used in Title 18, Section 1030 of the United States Code, (the Computer Fraud and Abuse Act) which prohibits a number of different kinds of conduct, generally involving unauthorized access to, or damage to the data stored on, "protected computers". The statute, as amen…

Why does Protected computer matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Protected computer?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Protected computer.

Tags

  • Computer law
  • Computer network security
  • United States federal criminal legislation

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